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test(sparkline): added benchmark (#384)
Added benchmark for the `sparkline` widget testing a basic render with different amout of data
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Original file line number | Diff line number | Diff line change |
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use criterion::{criterion_group, criterion_main, Bencher, BenchmarkId, Criterion}; | ||
use rand::Rng; | ||
use ratatui::{ | ||
buffer::Buffer, | ||
layout::Rect, | ||
widgets::{Sparkline, Widget}, | ||
}; | ||
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||
/// Benchmark for rendering a sparkline. | ||
pub fn sparkline(c: &mut Criterion) { | ||
let mut group = c.benchmark_group("sparkline"); | ||
let mut rng = rand::thread_rng(); | ||
|
||
for data_count in [64, 256, 2048] { | ||
let data: Vec<u64> = (0..data_count) | ||
.map(|_| rng.gen_range(0..data_count)) | ||
.collect(); | ||
|
||
// Render a basic sparkline | ||
group.bench_with_input( | ||
BenchmarkId::new("render", data_count), | ||
&Sparkline::default().data(&data), | ||
render, | ||
); | ||
} | ||
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group.finish(); | ||
} | ||
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/// render the block into a buffer of the given `size` | ||
fn render(bencher: &mut Bencher, sparkline: &Sparkline) { | ||
let mut buffer = Buffer::empty(Rect::new(0, 0, 200, 50)); | ||
// We use `iter_batched` to clone the value in the setup function. | ||
// See https://github.com/ratatui-org/ratatui/pull/377. | ||
bencher.iter_batched( | ||
|| sparkline.clone(), | ||
|bench_sparkline| { | ||
bench_sparkline.render(buffer.area, &mut buffer); | ||
}, | ||
criterion::BatchSize::LargeInput, | ||
) | ||
} | ||
|
||
criterion_group!(benches, sparkline); | ||
criterion_main!(benches); |